Lines Matching +full:gpios +full:- +full:states
1 // SPDX-License-Identifier: GPL-2.0
3 * GPIO-controlled multiplexer driver
21 struct gpio_descs *gpios; member
26 struct mux_gpio *mux_gpio = mux_chip_priv(mux->chip); in mux_gpio_set()
32 gpiod_multi_set_value_cansleep(mux_gpio->gpios, values); in mux_gpio_set()
42 { .compatible = "gpio-mux", },
49 struct device *dev = &pdev->dev; in mux_gpio_probe()
65 mux_chip->ops = &mux_gpio_ops; in mux_gpio_probe()
67 mux_gpio->gpios = devm_gpiod_get_array(dev, "mux", GPIOD_OUT_LOW); in mux_gpio_probe()
68 if (IS_ERR(mux_gpio->gpios)) in mux_gpio_probe()
69 return dev_err_probe(dev, PTR_ERR(mux_gpio->gpios), in mux_gpio_probe()
70 "failed to get gpios\n"); in mux_gpio_probe()
71 WARN_ON(pins != mux_gpio->gpios->ndescs); in mux_gpio_probe()
72 mux_chip->mux->states = BIT(pins); in mux_gpio_probe()
74 ret = device_property_read_u32(dev, "idle-state", (u32 *)&idle_state); in mux_gpio_probe()
76 if (idle_state < 0 || idle_state >= mux_chip->mux->states) { in mux_gpio_probe()
77 dev_err(dev, "invalid idle-state %u\n", idle_state); in mux_gpio_probe()
78 return -EINVAL; in mux_gpio_probe()
81 mux_chip->mux->idle_state = idle_state; in mux_gpio_probe()
85 if (ret && ret != -ENODEV) in mux_gpio_probe()
92 dev_info(dev, "%u-way mux-controller registered\n", in mux_gpio_probe()
93 mux_chip->mux->states); in mux_gpio_probe()
100 .name = "gpio-mux",
107 MODULE_DESCRIPTION("GPIO-controlled multiplexer driver");